BRAND NEW! Thor Radial MX Boots - Gray/Flo Yellow Pre-curved injection molded components throughout Radial hinge component adds structure and reduces overextension Injection-molded positive-lock buckle system Adjustable straps allow for a custom and secure fit Injection-molded medial-abrasion plate with integrated shift protection Fully synthetic calf overlays deliver premium durability and optimal grip Low-profile toe box for unhindered shifting Uni-directional outsole with steel shank for rigidity Replaceable outsole inserts for extended wear Mesh liner promotes airflow while interior EVA panels enhance comfort